With the Shimano XT FC-8120 2x Boost Crankset were proving to the world and our riding buddies that 2x aint dead. This crankset is built to work with the ever-rarer 2x boost bikes, making sure we have optimal range and still beat our buddies up and down the mountain. The crankset uses hollow-forged alloy for a strong and supportive base without an added weight penalty.